<div class="container table-striped-wrapper">
  <div class="row">
    <div class="col-sm-1"></div>
    <div class="col-sm-10">
      <table class="table table-striped">
        <thead>
          <tr>
            <th *ngFor="let th of ths">{{th}}</th>
          </tr>
        </thead>
        <tbody>
          <tr *ngFor="let tr of trs"> 
            <td>{{tr.DataType}}</td>
            <td>{{tr.BeginTime}}</td>
            <td>{{tr.EndTime}}</td>
            <td>{{tr.Charge}}</td>
          </tr>
        </tbody>
      </table>
    </div>
  </div>
</div>